Door check and closer.



No. 7m,o54.' Patented May 27, I902.

m KLINGLEB DOOR CHECK AND CLOSER. (Application med Jan. 26, 1901.)

(No Model.)

Unrrnn STATES ATENT @FFICE.

DOOR CHECK AND CLOSER.

SPECIFICATION forming part of Letters Patent No. 701,054, dated May 27,1902. Application filed January 26, 1901. Serial No. 14.876. (No model.)

To all whmn it may concern.-

Be it known that I, MATTHAUS KLINGLER, a citizen of the German Empire,residing at Oberndorf-on-the-Neckar, in the Kingdom of Wiirtemberg,Germany, have invented certain new and useful Improvements in DoorChecks and Closers; and I do here'bydeclare the following to be a full,clear, and exact de scription of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to a simple device capable of being mounted ondoors, windows, and the like by means of which said doors, windows, andthe like may be fixed in a totally or partially opened position orautomatically entirely closed, while in the latter case by anothersimple arrangement a violent slamming to of the door or the like isprevented.

The device essentially consists of a flat spring having two arms, bothends of which have a spring action against one another. One arm of thespring' 2'. 6., the longer one-- terminates in a support fixed to theframe of the door, window, or the like, while the other shorter armterminates in one arm of a bent piece, having its other arm pivotallymounted in the said support, and both arms form at the coinciding part aslot in which a pin, fixed to the door and serving for operating thelatter, slides with the movement of the door.

In the accompanying drawings, Figures 1 and 2 are front and endelevations, respectively, of the device, conventionally showing itsapplication to a swinging door. Fig. 3 is a plan view indicatingdifferent positions of the device in dotted lines. Fig. 4 is a plan viewshowing the device equipped with a checking attachment. Fig. 4 is adetail plan view of the checking attachment, and Figs. 5 and G arerespectively front and end elevations of the device equipped with thechecking attachment.

The flat spring consists of two arms a and a b, of unequal length,having at their free ends ofa U-shaped lever e, the other branch of saidlever being pivotally mounted in the said bracket d. A pin g engageswith the loop 0 of the spring, which pin is riveted to a plate It,attached to the door 15. preferably fixed to the door-frame w.

The device works in the following manner: As the free ends of the twoarms a and b of the spring have a tendency to mutually spring apart,when these ends are compressed the spring-arm b, mounted on the branch 6of the lever e, will tend to move away from the other firmly-mounted endof the arm at of the spring-that is to say, it will tend to turn theU-shaped lever 6. When the branch 6 is in a straight line with the pinfand the branch e, as indicated at II in Fig. 3, there is no turningaction, but the lever e is pressed radially outward by means of thespring-arm 'b and the spring a 1) remains stationary in a givenposition. In this position, whic h is shown in dotted lines in Fig. 3,the door is held fast by the spring in a half-open position. It is, forinstance, assumed in the drawing that the door is standing hereapproximately at right angles to its closed position-that is to say,half-open. Of course according to the position of the pin and the branche relatively to one another the door may be opened to a different width.If the door be turned from its half-open position in one of thedirections indicatedby the arrows to the position marked I or thatmarked III in Fig. 3, the springarm 1) acts on the lever e in such a waythat this latter is turned to the left or the right, as the case may be,whereupon the spring follows this direction of rotation of the lever andexerts a pressure on the'door-that is to say, it closes the door in theposition shown in Fig. 3 (I) or fully opens it to the position shown inIII, Fig. 3. As is evident, the spring closes or opens the doorautomatically as soon as it is turned out of its central position in onedirection or the other. In the central position (marked II) the door maybe said to be on a dead-center, as the spring then presses it in neitherdirection.

In order that the door whenvbeing closed by the pressure of the springshall not be slammed violently to, the arrangement shown in Figs. 4 to 6is employed. This consists of a checking device 7;, adjustably mountedThe bracket 61 is i on the bracket d by means of ascrew-nut is, locatedon the branch e of the lever e, which checking device is provided with aslot s,

Fig. 4*, at the place where the branch passes through it. The checkingdevice z'has two elbow-shaped projections t" 2' on one of its sides, inwhich projections set-screws Z, n, and 0 are located. The head of onescrew Zbears against an angular projection d, provided on the bracket(1. The ends of the other screws n and 0 bear against the bracket d. Thechecking device has on its under side a tongue m, against which when thedoor is closed the end of the arm I) of the double spring strikes whenswinging in a semicircle. The bearing of the spring-arm b has play onthe branch 6 in suchv a way that on the spring encountering the tongue mthe spring-b can give way so far that it slips over the tongue and thebranch e that is to say, the lever e turns completely so far that itassumes the position shown in Fig.3. The impetus accumulated by theclosing ofthe door is checked by the contactof the spring I) on thetongue m of the brake-support and the forcing back of the spring untilit can pass the tongue, as the spring by encountering the brake-supporthas its action on the door momentarily stopped or checked. When thespring I) has been released, it has just suflicient strength tocompletely close the door.

As appears from the foregoing, this simple closing device effects almostas completely a quiet closing of the door as the more expensive closingdevices at present employed and which are provided with air-pistons anda cylinder.

The, closing and fastening device for doors and the like shown in thedrawings may be also employed for windows and the like in quite the samemanner, with or without the brake device, and thus the closing of thewindows may be effected in an automatic and gentle manner.

This improved device in addition to greater simplicity and cheapnessalso possesses an advantage over the devices at present employed for thesame object, in that doors, windows, and the like are held fast equallyautomatically in half-opened or entirely-opened positions.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is- 1. A door-closing device consisting essentiallyof aspring having divergent arms, one

of which has its free end fitted on a'fixed support, and a swinginglever connected with the free end of the other armof'the spring, thesaid spring having a loose connection with the door.

2. The combination of a supporting-bracket adapted to be secured to afixed object, a U- shaped lever having one branch pivoted in saidbracket, a pin fixedly mounted .in' said bracket, and a spring looselyconnected with the door and having divergent arms, the end of one armbeing fitted on the fixed pin and the end of the other arm being fittedon the free branch of the U-shaped lever.

3. The combination ofasupporting-bracket adapted to be secured to afixed object, a lever pivoted in said bracket, a spring adapted to beloosely connected with a swinging object as a door, gate or shutterhaving divergent arms, one of which has a fixed connection with thebracket and the other of which has its end fitted on the free end of thelever, and a brake or checking device supported on the bracket andprojecting into the path of the lever and the spring-arm connectedtherewith.

4. The combination of a supporting-bracket adapted to be secured to afixed object, a lever pivoted thereon, a spring adapted to be looselyconnected with a swinging object as a door, gate or shutter havingdivergent arms one of which has a fixed connection with the bracket, andthe other of which is fitted on the lever, and a checking device adjustably mounted on the bracket and having a tongue depending into thepath of the lever and the spring-arm fitted thereon.

5. The combination of a supporting-bracket adapted to be secured-to afixed object, a lever pivoted thereon, a spring adapted to be looselyconnected with a swinging object as a door, gate or shutter havingdivergent arms one of which has a fixed connection with the bracket andthe other of which is attached to the end of the lever,a checking deviceextending into the path of the lever and the attached spring-arm andprovided with projections on its upper side, and set-screws engagingsaid projections and adapted to secure the checking device on thesupportingbracket.

In testimony whereof I affix my'signature in presence of two witnesses.

MATTHAUS KLINGLER.

Witnesses:

A. DRAUTZ, JUL. HALUSSERMANN.

